//
//  LXKNetWorkRequestManager.m
//  EPA
//
//  Created by lanou3g on 16/4/15.
//  Copyright © 2016年 LXK. All rights reserved.
//

#import "LXKNetWorkRequestManager.h"

@interface LXKNetWorkRequestManager ()
//存储回调Block的属性
//@property (nonatomic, copy) ResulrBlock block;

@end

@implementation LXKNetWorkRequestManager
// 单例方法
//+ (instancetype)defaultManager {
//    static LXKNetWorkRequestManager *manager = nil;
//    @synchronized(self) {
//        if (!manager) {
//            manager = [[LXKNetWorkRequestManager alloc]init];
//        }
//    }
//    return manager;
//}

//请求方法
+ (void)requestURL:(NSURL *)url Method:(URLRequestMethod)method Params:(NSDictionary *)param Result:(ResulrBlock)resultBlock {
    //空的可变字符串
    NSMutableString *urlString = [NSMutableString new];
    if ([url isKindOfClass:[NSURL class]]) {
        //拼接url
        [urlString appendString:url.absoluteString];
    }else if ([url isKindOfClass:[NSString class]]){
        [urlString appendString:(NSString *)url];
    }
    if (urlString.length == 0) {
        NSError *error = [NSError errorWithDomain:@"EPA" code:251 userInfo:@{@"reason":@"您输入的网址不正确"}];
        resultBlock(nil,nil,error);
        return;
    }
    //把参数字典转成字符串
    LXKNetWorkRequestManager *manager = [LXKNetWorkRequestManager new];
    
    NSString *paraStr = [manager strFromDict:param];
    switch (method) {
        case LXK_GET:
            if (paraStr.length > 0) {
                [urlString appendFormat:@"?%@",paraStr];
            }
        {
//            [urlString appendString:paraStr];
            [manager requestURL:[NSURL URLWithString:urlString] resultBlock:resultBlock];
        }
        break;
        case LXK_POST:
            [manager postURL:urlString ParaStr:paraStr ResultBlock:resultBlock];
            
        default:
            break;
    }
}

//Get网络请求
- (void)requestURL:(NSURL *)url resultBlock:(ResulrBlock)block {
    NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession]dataTaskWithURL:url completionHandler:block];
    //开始网络请求
    [dataTask resume];
}

//POST网络请求
- (void)postURL:(NSString *)urlStr ParaStr:(NSString *)paraStr ResultBlock:(ResulrBlock)block {
    //创建URL
    NSURL *url = [NSURL URLWithString:urlStr];
    //创建可变请求
    NSMutableURLRequest *mRequest = [NSMutableURLRequest requestWithURL:url];
    //设置POST
    [mRequest setHTTPMethod:@"POST"];
    //请求体
    [mRequest setHTTPBody:[paraStr dataUsingEncoding:NSUTF8StringEncoding]];
//    __weak typeof(self) weakSelf = self;
    NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession]dataTaskWithRequest:mRequest completionHandler:block];
    [dataTask resume];
}
- (NSString *)strFromDict:(NSDictionary *)dict {
    //空的字符串
   
    //空数组
    NSMutableArray *array = [NSMutableArray new];
    for (NSString *key in dict) {
        NSString *str = [NSString stringWithFormat:@"%@=%@",key,dict[key]];
        [array addObject:str];
    }
    //数组拼接字符串
    NSString *para = [array componentsJoinedByString:@"&"];
    NSLog(@"%@",para);
    //返回
    return para;
}

@end
